144730665 has 32 divisors (see below), whose sum is σ = 257852160. Its totient is φ = 77023872.

The previous prime is 144730637. The next prime is 144730679. The reversal of 144730665 is 566037441.

It is a happy number.

It is not a de Polignac number, because 144730665 - 2⁵ = 144730633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86517 + ... + 88173.

It is an arithmetic number, because the mean of its divisors is an integer number (8057880).

Almost surely, 2^144730665 is an apocalyptic number.

144730665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144730665 is a deficient number, since it is larger than the sum of its proper divisors (113121495).

144730665 is a wasteful number, since it uses less digits than its factorization.

144730665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2312 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 144730665 is about 12030.4058535030. The cubic root of 144730665 is about 525.0333040097.

The spelling of 144730665 in words is "one hundred forty-four million, seven hundred thirty thousand, six hundred sixty-five".